When you say “evidence from Camden on what happened” Do you mean letter sent out, please clarify.
Also as the damage is quite extensive i.e. extending cracks on all ceiling & evidence of this spreading down the walls. I really feel it imperative that when I do my repairs the Leasholder above me, does work to resolve the on going problem with their floor…as I do not want to be back to square one of there is another leak, is there anyway that I can press for them to do preventative work on their flat?